Improvement in subsoil-plows



L. V. B. MARTIN.

SUBSOIL PLOW.

*1o. 108,164. PatentedOot. 11, 1870.

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LUCIAN V. B. MARTIN, OF TUSOALOOSA, ALABAMA.

Letters Patent No. 108,164, dated October 11, 1870.

IMPROVEMENT IN SUBSOlL-PLOWS.

The Schedule referred to in these Letters Patent and making part of the same.

Plow; and I do hereby declare the following to be a full, clear, and exact description of' the same, reference being.,r had to the accompanying drawing making a part of this specification, in Which- Figure l is a view in perspective.

Figure 2 is a sectional view through the line a' a', showing the shape of the shank and eolter.

This invention relates to subsoil-plows, and consists in so constructing the shovel and its shank in one piece, and so arranging the latter with the beveled stock or standard of the plow, as not only to protect the same, but to form a colter or cutting-edge and an inclined surface, as hereinafter described.

`In the drawing A is a scooter or shovel-stock, provided with an extraordinary long shank, b, beveled to a feather' edge on its land-side, at an easy angle, that will permitthe dirt to slide off readily.

To the shank b is tted and fastened a east-iron or wrought-iron plate, e, having a corresponding cuttingedge,v and terminating in a keen-pointed cutter, d, with a cutting-wing, e, extending along its right side.

As the point of the cutter ll enters the ground, the wing e `ents under, and the sharp edge of the plate cuts oi the dirt, which readily slides off from theangling surface of the plow, without turning, While, at the Sametime, it is suliicicntly displaced t-o become broken thoroughly.

Having thus' described my invent-ion,

What I claim as new, and desire to secure by Letters Patent, is-

The shank `and shovel, formed iu one piece, wher applied to the inclined or beveled stock A, and provided with the cutting-edges (l and e, all constructed and arranged in the manner described, to operate as specified.

LUCIAN V. B. MARTIN. Witnesses:

J. W. STRUDWICK, J. M. MARTIN. 

